Hasekura Kohei has transferred school ten times. His new school, Shuchikan Academy, is on an island he lived on for a short period before when he was younger, Tamatsu Island. There awaited him the student council vice-president, Sendo Erika.
桜舞う四月。主人公・支倉孝平は、転校生活に終止符を打つべく、全寮制の修智館学院に転入する。落ち着いた毎日を過ごせると思っていた孝平だが、学院で出会う面々は、生徒会副会長の千堂瑛里華をはじめ、個性的すぎる人ばかりで・・・!?賑やかな学園生活が幕を開ける―――!